Spzeit-level attachment



.W. E. WEILEP.

SPHHT LEVEL ATTACHMENT.

APPLICATION FILED JUNE 21, HHB.

. 1,305,636, Patented June 3, 1919.

l7 c w M (9/ 135, 7 v? 6 l/ /9 m Z 70 A a I 6 9 9 J wvewto z WETED STATES PATENT OFFICE.

WILLIAM EDWARD WEILEROF BRIGHTON, COLORADO.

SPIRIT-LEVEL ATTAGHMEN T.

To all whom it may concern.

Be it known that I, WILLIAM E. WVEILEP, a citizen of the United States, residing at Brighton, in the county of Adams, State of Colorado, have invented certain new and useful Improvements in Spirit-Level Attachments; and I do hereby declare the fol.- lowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to new and useful improvements in spirit levels of that type provided with a lateral leg which may be held in adjustably extended position with respect to the body of the spirit level so that a true grading may be readily eifected of a surface inclined either with respect to the vertical or horizontal planes.

It is in general the object of the present invention to simplify and otherwise improve the structure, to increase the efficiency of devices of this character and to provide for a most ready extension or retraction of the leg and for locking the leg in any desired .position.

A further object resides in the provislon of a device of this character which may be associated in a most ready manner with spirit levels now in ordinary use.

With the above and other objectsand advantages in view, the invention resides more particularly in the novel combination, formation and arrangement of parts hereinafter described and particularly pointed out in the appended claim.

In the accompanying drawings:

Figure 1 is an elevational view of the improved spirit level having its leg extended for engagement with a vertically inclined surface.

Fig. 2 is a sectional view taken through the leg securing means on a plane extending longitudinally of the body of the level.

Fig. 3 is a sectional view taken at right angles to Fig. 2, showing the leg and pinion in elevation.

Fig. 4 is a sible leg.

Referring now more particularly to the accompanying drawings, 5 designates the body of a spirit level of conventional form and comprising an elongated Wooden block in which is set the longitudinal and transperspective view of the exten- Specification of Letters Patent.

Application filed June 21, 1918; Serial No. 241,194.

verse bubble tubes 6 for use with the present invention, which may comprise an attachment thereto, or Wl11Cl1 may be associated with the spirit level in the manufacture thereof, the level is provided adjacent one end with a transverse passage 8 therethrough and disposed in this passage is a squared sleeve 9 which has one end secured to a face plate 10 attached by the screws 11 to the edge face of the body of the level. Extending transversely through the body of the level and intersecting the sleeve is a shaft 12 which is journaled in bearings 13 secured to one side of the sleeve, one end of this shaft extending outwardly of the level body and carrying a handle knob 14, while the other end of the shaft is extended a slight distance beyond the sleeve and is threaded for engagement in the threaded socket end of a shaft 15 journaled in the level body and projecting outwardly of the opposite side thereof, said projecting end carrying a handle knob 16. Slidable in the sleeve is a leg 17 and it is noted that this leg extends between the bearings 13 and the side of the sleeve opposite that to which said bearings are attached, whereby the bearings form a guide fo the leg within the sleeve and, be tween the bearings, the leg carries a longitudinal series of teeth 18 meshing with a pinion 19 mounted on the shaft 12.

Thus, upon rotation of the shaft 12, the leg 17 will be extended from or retracted into the body of the level, and one side of the leg carries a series of graduations 20 whereby its extension from the level body may be accurately gaged in accordance with the desired inclination of the surface with which the level is associated. To look the leg in desired extended position, the shaft 15' the threaded end of the shaft 13 into its socket and thus procure a the end of the shaft 15 portion 21 of the shaft 13 An efficient a plurality binding action of and of a shoulder against the sides of the sleeve. lock is thus provided affording of pairs of clamp surfaces.

An exceedingly simple and efiicient device has thus been provided which may be associated with an ordinary spirit level as an attachment thereto, or which may be economically embodied in the level during its manufacture, it being noted that in the in- Stance f a level body formed of metal, the receiving sleeve of the leg may be integrally cast therewith.

What is claimed is:

In a spirit level, a body member provided with a transverse recess and with coaxial shaft passages, a sleeve mounted in said recess, a leg slidably mounted in the sleeve, a shaft extending through one of the passages and through the sleeve and body memher and provided with a shoulder engaging one side of the sleeve, a second shaft disposed in the other passage and engageahle gear pinion with the other side of the sleeve and provided with a threaded socket for receiving the adjacent end of the first named shaft, a 0n the first named shaft and a series of rack teeth on the leg meshing with said pinion.

In testimony whereof I afiiX my signature in the presence of two witnesses.

WILLIAM EDWVARD WEILEP. Witnesses D. F. CLARKSON, G. B. Kinse Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

